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G. W. CHESNUT. WHEEL AND RAIL CHOCK BLOCK. APPLICATION mm JULY 29. m5.

Patented Aug 8, 1916.

GEORGE w. onnsivu'r, OF'CARTWRIGHT, PENNSYLVANIA.

WHEEL AND RAIL CHOCK-IBLOCK.

Specification of Letters Patent.

Patented Aug. 8, 1916.

Application filed July 29, 1915. Serial No. 42,514.

To all whom it may concern:

Be it known that I, GEORGE l/V. CHEsNUT, a citizen of the United States,residing at Cartwright, in the county of Elk and State of Pennsylvania,have invented certain new and useful Improvements in Wheel and RailChock-Blocks, of which the following is a specification.

This invention relates to improvements in railway-brakes, and morespecifically to wheel and rail chock-blocks.

The object of my invention is to provide a chock-block for useespecially in retaining a car upon a transfer or turn-table.

My device is securely fastened upon the transfer or turn-table in properrelative position with respect to the track so that it may be locked inoperative position upon the track simply by pushing the locking armforward, and unlocked by a reverse move ment.

Furthermore, my device is extremely simple in construction andoperation, economical in manufacturing cost, durable, and elficient inoperation as it positively locks a car upon a transfer-table orturn-table.

Other objects of this invention not at this time more particularlyenumerated, will be clearly understood from the detailed description anddrawings forming apart of this specification.

Furthermore, this invention consists in the novel arrangement andcombination of parts more particularly described in the followingspecification and embodied in the claims appended hereunto and forming apart of this application.

Referring now to the drawings, which are merely illustrative of myinvention, Figure l is a side elevation showing the relative position ofmy'chock-block in operative position with respect to a car wheel andrail mounted upon a transfer-table. Fig.2 is' a similar view ininoperativeposition. Fig. 3 is a de' tail sectional view taken on the]ine 3-3 of Fig. 1.

Referring further to the drawings, wherein similar reference charactersdesignate similar parts 1 throughout the respective views, 1 designatesamain-line track upon which a transfer-table 2 is adapted to run. Theconstruction of the transfer-table is immaterial, since my device is soconstructed that it may be fastened upon various foundations withoutnecessitating such changes in constructionas to deviate from theprinciple of constructionshown in my invention. For

purposes of illustration, I have shown an I- beam 3 as forming a part ofthe platform of the transfer-table, transversely of which there ismounted a rail track 4. The wheel 5 of the car (not shown) to betransferred 1s adapted to run upon the track a and to be retainedthereon by my chock-block during the course of its transfer from onetrack to another. 7

At a certain point upon the I-beam 3 and spaced apart a certain distancefrom the side of the rail 4, there is fixedly mounted a bifurcatedL-shaped guide member 6, which may be made integral, or of two L-shapedmembers having their shorter arms laid parallel in juxtaposition one ontop of the other, as shown in Fig. 3. The -L-shaped bifurcated guidemember is vertically mounted upon the I-beam 3 by means of bolts 7secured through the upper flange of said beam and the shorter arm ofsaid plate member.

A locking arm 8, having a handle 9 upon one end, and a finger 10 uponthe opposite end thereof, is formed with an elongated slot 11therethrough, angularly disposed with respect to a horizontal plane, thelower end of said slot terminating near the handle end of said arm, anda vertical slot 12 being formed in continuation of said slot 11. Saidarm 8 is mounted between the bifurcations of said guide member 6 and isslidably retained therebetween by means of a bolt 13 mountedtransversely through said guide member and through the slot in said arm.

From the construction shown and described, it is obvious that when thehandle 9 of the locking arm-is grasped and pushed forward, the arm willbe raised upwardly within the bifurcated guide member 6. lVhen the arm 8has moved forward until the lower end of the slot 11 contacts with,

the bolt'13, the finger 10 will be in a position diametrically above andspaced apart with respect to the head of the rail 4. As the arm dropsdown and the bolt 13 engages with the top of the vertical slot 12. thefinger 10 will seat upon the rail 4, thereby limiting the movement ofthe wheel 5 upon the rail 1.- The operation is reversed to withdraw thearm of my wheel and rail chock-block into inoperative position.

The utility, adaptability, and advantages of my improved form of wheeland rail chock-blocks being obvious, it is unnecessary to furtherenlarge upon the same herein.

Having now described and pointed out the new and useful features of myinvention, I do not limit myself to the shape of certain parts where theshape is not essential, nor do I restrict myself to the exact details ofconstruction shown and described, but mean and intend to claim allequivalents and variations thereof not departing in principle from myinvention and falling within the purview of the appended claims.

What I claim as my invention and desire to secure by Letters Patent is:

1. A device of the class described, in combination with a railway rail,a supporting member, a bearing thereon, and an arm hav ing an angularslot receiving the bearing, said arm being operable upwardly andlaterally into and out of proximity to the rail.

2. In a chock-block, a bearing, a slotted.

member in engagement therewith, and handle means on said slotted memberto move the latter into and out of operative position.

3. In a chock-block, a support, a bearing thereon, and an arm having aslot in engagement with the bearing, said slot being formed to lock saidarm in operative p0sition.

4:. In a wheel and rail chock-block, in combination, a verticallydisposed bifurcated guide member, a bearing mounted upon said guidemember transversely thereof, an arm adapted to slide within said guidemember, said arm formed with an elongated slot therethrough, saidbearing adapted to slidably engage with the slot in said arm, a fingerformed on one end of said arm, and a handle formed on the other end ofsaid arm.

5. In combination with a transfer-table, a bifurcated guide membervertically mounted upon said transfer-table, a bearing interposedbetween the sides of said guide member, an arm adapted to slide withinsaid guide member, said arm formed with an elongated angular slottherethrough, said arm formed with a vertical slot therethrough incontinuation of said angular slot, said bearing adapted to slide withinsaid slot, a finger formed upon one'end of said arm, and a handle formedupon the other end of said arm.

In testimony whereof I afiix my signature hereto.

GEORGE W. CHESNUT.

Copies of this patent may be obtained for fiveeents each, by addressingthe Commissioner of Patents. Washington, D. C.

